研发人员的数量变动进一步揭示了行业分化的加剧——五年间，10 个行业的研发人员数量出现负增长，且这些行业主要集中在尾部；而以消费电子及电气业、汽车制造业为代表的行业，则大力扩张研发人员规模。
arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.
。业内人士推荐一键获取谷歌浏览器下载作为进阶阅读
The success of the test means project leaders are considering scrapping plans to flood 900 acres (364 hectares) of farmland in Gloucestershire, which was initially proposed to provide a compensating habitat for fish.
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